Latest data from the U.S. Department of Transportation Highway Administration page:Americans Driving At Historic Lows
Eleven Billion Fewer Vehicle Miles Traveled in March 2008 Over Previous March
The graph is from here. Please let me know where similar Canadian data can be found. The answer does not seem to be "Stats-Canada" or "Transport Canada". (And excuse my ineptitude with Paint. The graph looks better when you click on it.)
